An item for the determination of the electrical wavelength or frequency being generated by an electronic equipment such as a radio transmitter. It may be placed in the radiation field of the equipment, thereby operating on the "absorption" principle, or connected into a transmission line or waveguide run between the equipment and a component such as an antenna, thereby operating on the tuned cavity resonance principle. It includes inscriptions from which the wavelength or frequency can be determined directly, or by reference to an associated calibration curve or tabulation. The wavemeter operates in accordance with its design function only when the equipment under measurement is operating. For items, such as grid dip meters, that determine the same information when the equipment under measurement is not operating, see frequency meter.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 6610-01-339-1595
NSN 6240-00-840-3647
NSN 5835-01-557-4914
NSN 6105-00-054-3883
NSN 5915-01-181-6626
NSN 5835-01-124-2942
NSN 5910-00-957-6014
NSN 5945-01-009-9254
NSN 6620-01-498-2052
NSN 5910-01-218-5987
NSN 5925-00-869-1630
NSN 6240-01-655-3819